adds mashery keys to aaa requests
Merge pull request #2 from matt-wratt/feature/IDM-5-add-mashery-keys-to-aaa-requests

[Feature, IDM-5] Added mashery keys to aaa requests
fix setting of mashery header
Merge pull request #3 from matt-wratt/feature/IDM-5-add-mashery-keys-to-aaa-requests

[Feature, IDM-5] Fix setting of mashery api key header
fix setting of mashery header
Merge pull request #4 from matt-wratt/feature/IDM-5-add-mashery-keys-to-aaa-requests

[Feature, IDM-5] Fix setting of mashery header
Raise error if Mashery API Key not set

Would have saved me a fair bit of time
Merge pull request #5 from itinsley-wf/local_issues

Raise error if Mashery API Key not set
Add log.info message when requesting cas response
raise log message to warn
Don't raise exception when Mashery API Key is absent
Call to_s on ENV['MASHERY_API_KEY']

  * fixes: NoMethodError: undefined method `strip' for nil:NilClass`